Antioch Illinois Climate Data

Monthly Average Climate Data for Antioch Illinois

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.4 °F29.0 °F1.92 in.
February16.3 °F32.8 °F1.89 in.
March25.6 °F43.8 °F2.26 in.
April36.0 °F56.5 °F3.9 in.
May46.7 °F68.2 °F4.4 in.
June56.9 °F78.0 °F4.63 in.
July61.6 °F82.2 °F3.7 in.
August60.1 °F80.7 °F3.65 in.
September52.4 °F73.9 °F3.64 in.
October40.8 °F60.8 °F3.12 in.
November30.1 °F46.6 °F2.41 in.
December19.8 °F34.3 °F2.15 in.
Annual38.3 °F57.2 °F37.67 in.

Climate Data for Antioch Illinois

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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